A1c 5.4, bmi 21health anxieties. not diabetic.i check my sugar out of fear father w/t2. this morning at 6 it was 100, 6:30 98, checked again at 9 it was 111. no food for14 hours. why did it go up so high?does not eating affect?need to stop obsessing

I think you're overdoing checking your blood sugar. A fasting level of 110 or less is normal. A reading of 111, in your case, is of no consequence. Your A1c isn't in the prediabetes range at this time.

Your body will break down carb stores in your liver & fat stores throughout your body to make glucose. Some of your organs like the brain & heart need glucose to function. Quit worrying about T2 at a BMI 21, over 31 maybe 41, probably but not where your at. Go find a life coach to teach you stress management skills before you blow a gasket.